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High-shock resistance polypropylene/polybutylene composite material as well as preparation method and purposes thereof

A technology of high-impact polypropylene and composite materials, applied in the field of polymer materials, can solve problems such as poor low-temperature impact resistance, large molding shrinkage, and easy aging, and achieve outstanding impact resistance and excellent compatibility. Effect

Inactive Publication Date: 2014-02-19
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This new type of plastic that combines two types of materials - PolyButene (PB) with Propyleneglycol (PEG). It's very strong but can be easily molded into different shapes without adding any extra components like polystyrene or other chemical substances. These composites are resistant to damage from external factors like rainwater, snow, dirt, heat waves, sunlight, fire hazards, and even high temperatures during manufacturing processes. They also have good mechanical properties at room temperature making them ideal for use on vehicles due to their low thermal conductivity compared to traditional metal alloys used inside these structures.

Problems solved by technology

This patents discusses how adding certain chemical substituants during manufacturing processes improves the properties of polyolefin compositions while reducing their cost compared to traditional ones due to increased demand on resources. Additionally, there exist technical problem addressed by this patent where replacing existing plastic components may require expensive new plastic alternatives like PP/EP, PA66, etc., leading to an increasingly competitive edge over conventional plastic systems.

Method used

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  • High-shock resistance polypropylene/polybutylene composite material as well as preparation method and purposes thereof
  • High-shock resistance polypropylene/polybutylene composite material as well as preparation method and purposes thereof
  • High-shock resistance polypropylene/polybutylene composite material as well as preparation method and purposes thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0032] The components and formulations provided in Table 1 (according to the percentage by weight, the following examples are all the same) weigh the materials, mix them in a high-speed mixer for 5 minutes, and extrude them in a twin-screw extruder with an aspect ratio of 45 and a diameter of 50 Pelletizing to obtain polybutene / polypropylene composite material. The polybutene used is homopolybutene, the isotacticity mmmm=90% of the NMR test, and its melt flow rate (190°C, load 2.16kg) is 5.5g / 10min; the polypropylene is impact polypropylene 8003, The isotacticity is 92%, the melt flow rate (230°C, load 2.16kg) is 13g / 10min, the flexural modulus is 1250MPa, and the impact strength is 60J / M. The temperature of each section of the extruder is: 180°C in the first zone, 200°C in the second zone, 200°C in the third zone, 230°C in the fourth zone, 230°C in the head, and a melt pressure of 17MPa.

[0033] The performance test results are shown in Table 2.

[0034] Components and for...

Embodiment 4～6

[0042] The components and formulations provided in Table 3 (according to weight percentage, the following examples are all the same) weigh the materials, mix them in a high-speed mixer for 5 minutes, and then process them in a twin-screw extruder with an aspect ratio of 45 and a diameter of 50 Extrusion granulation to obtain polybutene / polypropylene composite material. The polybutene used is isotacticity mmmm=78% homopolybutene in NMR test, its melt flow rate (190°C, load 2.16kg) is 0.8g / 10min; polypropylene is homopolypropylene, its melt flow rate is 0.8g / 10min; The bulk flow rate (230°C, load 2.16kg) is 20g / 10min, the flexural modulus is 1.4GPa, and the impact strength is 30J / M. The temperature of each section of the extruder is: 180°C in the first zone, 200°C in the second zone, 200°C in the third zone, 230°C in the fourth zone, 230°C in the head, and a melt pressure of 17MPa.

[0043] The performance test results are shown in Table 4.

[0044] From the test results in Ta...

Embodiment 7～8

[0050] The components and formulations provided in Table 5 (according to weight percentage, the following examples are all the same) weigh the material, mix it in a high-speed mixer for 5 minutes, and then use it in a twin-screw extruder with an aspect ratio of 45 and a diameter of 50 Extrusion granulation to obtain polybutene / polypropylene composite material. The polybutene a used is homopolybutene with isotacticity mmmm=91% in nuclear magnetic test, and its melt flow rate (190°C, load 2.16kg) is 0.8g / 10min; polybutene b is isotactic in nuclear magnetic test Homopolybutene with degree mmmm=63%, its melt flow rate (190°C, load 2.16kg) is 0.8g / 10min; polypropylene is copolymerized polypropylene EPF30R, its melt flow rate (230°C, load 2.16kg) kg) is 15g / 10min. The temperature of each section of the extruder is: 180°C in the first zone, 200°C in the second zone, 200°C in the third zone, 230°C in the fourth zone, 230°C in the head, and a melt pressure of 17MPa.

[0051] The perf...

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Abstract

The invention relates to a high-shock resistance polypropylene/polybutylene composite material as well as a preparation method and purposes thereof, and belongs to the field of high molecular materials. Matrix resins of the composite material consist of 99-50 wt% of polypropylene resins and 1-50 wt% of polybutylene resins, and are added with inorganic fillers, antioxidant, light stabilizer, scrape resistant assistant, color masterbatch and nucleating agent. The composite material is prepared by adopting a two-screw extruder through an extrusion mixing method. The prepared high-shock resistance polypropylene/polybutylene composite material has prominent shock resistance and excellent rigidity and processing performance, and is suitable for automobile plastics, trays, electric wires, cables and electric appliance shells.

Description

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Claims

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Application Information

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Owner QINGDAO UNIV OF SCI & TECH
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